I am doing a research where I wanted to use the Overlap Analysis Model along with the Habitat Risk Analysis Model, but the model was removed after upgrading to InVEST 3.6. I would like to know the reason for discontinuation of the model and also would like to know if any model replaced it?
I’m not too familiar with the old Overlap Analysis model, but I think it was deprecated because it was not well-supported and it’s functionality can be achieved just with basic GIS tools. So a custom tool was not worth maintaining. For a more sophisticated analysis of cumulative risk from multiple overlapping stressors, the Habitat Risk Assessment model is definitely the way to go.
By the way, old versions of InVEST with deprecated models are still available, but in general we don’t put effort toward supporting their use. http://data.naturalcapitalproject.org/invest-releases/